Key holder



FIG. 1 is a perspective view of a key holder showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view taken from the right side of FIG. 2;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a side elevational view taken from the left side of FIG. 2;

FIG. 6 is a bottom plan view; and

FIG. 7 is a top plan view.

The ornamental design for a key holder, as shown and described.